Teleprinter normally not my playground. I collect wired speaking stuff (mainly germanWW I) and so my knowledge is tiny. But I learned that they were some different types: Lochschreiber, Blattschreiber and Springschreiber and perhaps some more. Until now I only knew the Lochschreiber the others are new for me. But how you write we want to learn more
About the Fernschaltgerät.
I thought we can say it is an early Fernschaltgerät 39. Made sense, the 39 said us, that the first models from the 40`s.